Weft-replenishing mechanism for looms



Dec, 2, 1924.

J. E. HUME wEFTv REPLENIsl-IING MECHANISM Fon Looms Filed oct. 18. 1922 Z. 0 Zw. 2. 1

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JOHN E. HUME, OF CLINTON, MASSACHUSETTS, k.ASSIGHNOR T CROMPTO'NKSL KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

WEET-REPENISHIVNG MECHANISM FOR` LOO'MS.

Application ifled yOctober 18, 1922. Serial No. 595,412.

To allan/tom t ma-g/ concern: Be 1t known that I. JOHN E. HUME,

-ia citizen of the United States, residing atL Clinton, in the county of Worcester and State of Massachusetts, have invented a new and useful Veft-Replenishing Mechanism for Looms, of which the following is a specification.

This invention relates to looms of the weft replenishing type and particularly to improvements in magazines in which the weft carriers are stored and from which they are transferred to the shuttles. In fancy looms using several shuttles with different kinds or colors of weft, certain shuttles may be in operation only occasionally and the corresponding weft carriers will be transferred only at relatively long intervals. These weft carrier thus remain for long periods of time in the magazine compartments and it is found that lthe vibration of the loom causes more or less angular movement of the weft carriers, resulting in the serious entanglement of the weft ends.

It is the object of my invention to provide an improved construction in a weft carrier magazine by which such angular displacement may be prevented.

In attaining this object, my invention in its preferred form comprises a member fric tionally engaging the heads of the weft carriers in a magazine compartment but temporarily withdrawn during transfer to permit free downward movement of the weft carriers.

My invention further relates to details of construction which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings in which- Fig. 1 is a side elevation of a weft carrier magazine of the stationary type;

Fig. 2 is a sectional elevation taken along the line 2-2 in Fig. 1; and

F ig. 3 is a similar view showing certain parts in a different position. n

Referring to the drawings, I have shown a weft carrier magazine having four vertical compartments in which four kinds or colors of weft carriers may be stored. This magazine comprises end frames or plates 10 and 11 having vertical guides or partitions 12 and 13 which form the sides of the different weft lcarrier compartments. The magazine is supported on a bracket 14 secured 'to the breast beam 15 in the usual manner. j y

A slide 16 is provided for each compartment and 'arms 17on a rock shaft 18 may be selectively engaged with projections 19 on the slides to raise a selected slide and release a weft carrier in the corresponding compartment for its preliminary movement for transfer. The rock shaft 18 is movable axially to selectively engage the projections 19, such movement being controlled by a bell crank 20 connected to the drop box mechanism of the loom.

The parts thus far described are of the usual construction and form no part of my present invention. For a more complete description, reference is made to my prior Patent No. 1,030,748, issued J une 25, 1912.

In each vertical compartment of the magazine I provide a fiat spring 21 riveted or otherwise secured at its upper end t0 the magazine frame 10, the lower end of this spring resting freely against the end wall of the compartment. The spring is curved outwardly to such an extent that it will frictionally engage the heads of thel weft carriers W contained in the compartment.

An arm 22 projects from the rear side of the spring 21, said arm extending through a slot or opening 23 in the frame 10 and into the path of movement of the corresponding slide 16. As the slide is raised upon indication of transfer, the upper end of the slide engages the arm 22 and flattens or withdraws the spring 21 to the position shown in F ig. 3, in which position it releases the weft carriers W and permits them to move freely downward. As the slide thereafter returns to its normal lower position the spring again frictionally engages the weft' carriers and holds them from relative angular movement.

I have thus provided an extremely simple device which is effective in preventing such entanglement of the weft ends as has been heretofore caused by the angular movement of the weft carriers in the magazine.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed otherwise than as set forth in the claims but Wha-t I claim is: f

l. In a weft carrier magazine having a compartment adapted to contain a plurality of weft carriers, in combination, a friction member mounted at the end of said oompartment and positioned to yieldingly engage the heads of the weft carriers and means to withdraw said member from engagement with said weft carriers upon indication of transfer.

i2'. In a weft Carr-ier magazine having a compartment adapted to contain a plurality of weft carriers, in combination., a flat spring mounted at the end of said compartment and positioned to 'frietionall'y engage the heads. of' the weft carriers7 and means to Withdraw said spring upon indication of transfer.

3. In a weft Carrier magazine having a compartment adapted to contain a plurality of weft Carriers, in combination, a flat spring' mounted at the end of said compartment7 said spring being fixed at its upper end to the magazine frame and having its lower end freely movable, said spring having also an arm proj eeting through the end of the magazine, and means engaging said arm to Withdraw said spring from engagement with the weft Carriers upon indication ot transfer.

In testimony whereof I have hereunto affixed my signature.

JOHN E. I'IUME. 

